Non Fiction Books for Tweens

What kind of non fiction books would tweens like to read? Biographies of famous sports stars? Books on how to draw amime or comics? My 9 year old daughter wanted a book on how to read and write hieroglyphics after we went to a new Egyptian exhibit at the Phoebe Herst Museum at CAL.

My first class in jr. livesaving was in middle school and led to my being a lifeguard instructor and now a member of a Search and Rescue Team. I found a great book I read as a tween called The Emergency Book by Jeanne Bendick. Please see the review.